EP2855083B1 - Method for compacting anodic paints, including the collision of sandblasting jets - Google Patents

Method for compacting anodic paints, including the collision of sandblasting jets Download PDF

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Publication number
EP2855083B1
EP2855083B1 EP13729999.6A EP13729999A EP2855083B1 EP 2855083 B1 EP2855083 B1 EP 2855083B1 EP 13729999 A EP13729999 A EP 13729999A EP 2855083 B1 EP2855083 B1 EP 2855083B1
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Prior art keywords
jets
sand
sandblasting
compacting
anodic
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German (de)
French (fr)
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EP2855083A1 (en
Inventor
Jacques BOULOGNE
Alain Potel
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Safran Aircraft Engines SAS
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SNECMA Services SA
SNECMA SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening

Definitions

  • the field of the present invention is that of the surface treatment of mechanical parts and, in particular, that of compaction of anodic paints for the protection of turbine engine parts.
  • Some aircraft engine parts have very high mechanical loads and only specific materials can meet the mechanical strength requirements imposed on them. These materials have, in general, the disadvantage of being very sensitive to corrosion; it is therefore imperative to protect them with a product that is likely to withstand the environment in which these parts evolve (high temperature, presence of engine oil, kerosene, etc. .).
  • the corrosion protection currently used consists of a covering of the part with a paint resistant to the high temperatures and to the various fluids mentioned above. But this painting being classified CMR (for Carcinogenic, Mutagenic, Reprotoxic), it is struck by the REACH regulation on the registration, the evaluation, the authorization and the restrictions of the chemical substances. It has therefore been necessary to look for a new method of protection to overcome the constraints related to this regulation.
  • a first solution consisted in basing the protection system no longer on the sole principle of a covering by a paint but on a physicochemical process, called anodic painting.
  • This process consists in projecting onto the surface of the part a liquid loaded with metal pigments, such as aluminum or zinc, and then heating the part in an oven to polymerize the projected product.
  • metal pigments such as aluminum or zinc
  • the protection ceases, the part becoming sensitive to electrochemical corrosion.
  • it is advisable to make the surface layer conductive so as to make it a sacrificial layer which will corrode preferentially, in place of the metal of the part to be protected.
  • the subject of the invention is a process for compacting sand-blasting anodic paints comprising sending at least two jets of an abrasive material towards a part covered by said paint, said jets being oriented from convergent manner and meeting at a point of focus, characterized in that said point of focus is positioned upstream of the piece.
  • the arrangement of the jets of abrasive material has a symmetry with respect to the direction perpendicular to the surface to be treated.
  • the jets of abrasive material are two in number and form an angle of 90 ° between them.
  • the distance of the focusing point from the surface of the workpiece is between 200 and 300 mm.
  • the sanding pressure is greater than 2 bars. It is therefore possible to use the existing sandblasting facilities, by simply making a drop in the sand spray nozzles.
  • FIG. 1 and 2 it is seen, respectively in front view and in top view, sanding a workpiece 1 as it is commonly practiced for the surface finish of a turbomachine part.
  • the conventional sanding is carried out with two nozzles 2, which are oriented at 90 ° to each other and which each send a bundle of sand 3 perpendicular to the surface of the part 1, the two jets propagating in the same plan.
  • the distance "d" from the straight line connecting the two nozzles 2 to the piece 1 is such that the two beams 3 meet at a focusing point 4 which is located on the piece 1, that is to say they reach both have the same point to sand.
  • FIG. 3 and 4 it is seen, respectively in front view and in top view, the compaction, according to the invention, of the paint which covers the workpiece.
  • the two nozzles 2 are positioned as before with jets 3 oriented in the same plane at 90 ° to each other and with the same solid angle of divergence.
  • the sweeping along the piece is done, again, in the same way as for a conventional sandblasting.
  • the distance at which the nozzles are placed from the surface of the part is increased compared to the previous case, so that the straight line connecting them is now at a distance greater than the focusing distance d.
  • the adjustment of the nozzle / workpiece distance is made so that the focal point 4 of the jet is on the surface of the workpiece 1, that is to say where the kinetic energy of sand is the strongest.
  • the sanding pressures used are commonly of the order of 3 bars.
  • the focusing length d is invariable, irrespective of the sanding pressures used.
  • the invention consists in increasing the nozzle / piece distance without changing the angle of incidence of 90 ° of the sand bundles between them. The focal point 4 of these beams is then no longer at the level of the room itself, but at a point of convergence where the sand jets intertwine.
  • the collision of the particles then generates a beam diffraction, which has the effect of reducing the speed of the sand particles on the part 1 thus reducing its kinetic energy and making the diffracted beam 5 lose its power.
  • the consequence is a conservation of the cosmetic integrity of the paint while making it electrically conductive.
  • this solution has the advantage, because of the greater divergence of the diffracted beam 5, to cover a larger surface area of the workpiece and thus to be able to increase the scanning speed and thus reduce the treatment cycle. .
  • the invention recommends for this purpose a distance of recoil "r" of the piece relative to the focal point, which is of the order of 250mm, and in any case between 200 and 300 mm.

Description

Le domaine de la présente invention est celui du traitement de surface des pièces mécaniques et, en particulier, celui du compactage des peintures anodiques pour la protection des pièces de turbomachines.The field of the present invention is that of the surface treatment of mechanical parts and, in particular, that of compaction of anodic paints for the protection of turbine engine parts.

Certaines pièces de moteurs d'avion ont des charges mécaniques très élevées et seuls des matériaux spécifiques peuvent répondre aux exigences de tenue mécanique qui leur sont imposées. Ces matériaux ont, en général, pour inconvénient d'être très sensibles à la corrosion; il faut donc impérativement les protéger par un produit qui soit susceptible de résister à l'environnement dans lequel ces pièces évoluent (température élevée, présence d'huile moteur, kérosène, etc....). La protection anticorrosion actuellement mise en oeuvre consiste en un recouvrement de la pièce par une peinture résistante aux températures élevées et aux différents fluides précités. Mais cette peinture étant classée CMR (pour Cancérigène, Mutagène, Reprotoxique), elle est frappée par le règlement REACH sur l'enregistrement, l'évaluation, l'autorisation et les restrictions des substances chimiques. Il a donc été nécessaire de chercher une nouvelle méthode de protection pour s'affranchir des contraintes liées à cette réglementation.Some aircraft engine parts have very high mechanical loads and only specific materials can meet the mechanical strength requirements imposed on them. These materials have, in general, the disadvantage of being very sensitive to corrosion; it is therefore imperative to protect them with a product that is likely to withstand the environment in which these parts evolve (high temperature, presence of engine oil, kerosene, etc. ....). The corrosion protection currently used consists of a covering of the part with a paint resistant to the high temperatures and to the various fluids mentioned above. But this painting being classified CMR (for Carcinogenic, Mutagenic, Reprotoxic), it is struck by the REACH regulation on the registration, the evaluation, the authorization and the restrictions of the chemical substances. It has therefore been necessary to look for a new method of protection to overcome the constraints related to this regulation.

Une première solution a consisté à baser le système de protection non plus sur le seul principe d'un recouvrement par une peinture mais sur un procédé physico-chimique, dit peinture anodique. Ce procédé consiste à projeter sur la surface de la pièce un liquide chargé de pigments métalliques, tels que de l'aluminium ou du zinc, puis à chauffer la pièce dans un four pour polymériser le produit projeté. Il en résulte une couche de protection dure qui protège contre l'oxydation tant qu'elle n'est pas éraflée mais qui a la propriété de ne pas être conductrice. Dès lors que la pièce est rayée ou éraflée, la protection cesse, la pièce devenant sensible à la corrosion électrochimique. Pour pallier ce risque il convient de rendre conductrice la couche superficielle pour en faire une couche sacrificielle qui se corrodera préférentiellement, en lieu et place du métal de la pièce à protéger.A first solution consisted in basing the protection system no longer on the sole principle of a covering by a paint but on a physicochemical process, called anodic painting. This process consists in projecting onto the surface of the part a liquid loaded with metal pigments, such as aluminum or zinc, and then heating the part in an oven to polymerize the projected product. This results in a hard protective layer that protects against oxidation as long as it is not scuffed but has the property of not being conductive. As soon as the part is scratched or scratched, the protection ceases, the part becoming sensitive to electrochemical corrosion. To mitigate this risk, it is advisable to make the surface layer conductive so as to make it a sacrificial layer which will corrode preferentially, in place of the metal of the part to be protected.

On parle alors d'une peinture anodique pour désigner la couche superficielle, rendue ainsi conductrice. Pour ce faire il faut orienter les particules métalliques qui sont incorporées dans la formulation de la peinture après polymérisation, par une action mécanique, sans en dégrader l'aspect cosmétique. Deux procédés sont couramment utilisés pour cela :

  • le brunissage, qui consiste à frotter les parties peintes après polymérisation dans un même sens, avec l'aide d'une éponge métallique. Cette action permet de réaliser une continuité électrique sur les parties traitées. En revanche, il s'agit d'une action manuelle, qui est difficilement automatisable et donc non industrielle, et dans laquelle les zones de pièce difficilement accessibles ont un risque non négligeable de ne pas être traitées.
  • le compactage, qui consiste à sabler les parties peintes après polymérisation. Cette action permet de réaliser une continuité électrique sur les parties traitées. Mais elle doit être réalisée à très faible pression afin de ne pas dégrader les zones traitées. En revanche, pour conserver un fonctionnement correct à l'installation de sablage il faut lui conserver une pression d'utilisation relativement élevée et, en tout état de cause, trop importante pour le traitement de la pièce ; ceci entraîne, dans l'état actuel, un endommagement systématique de la qualité du revêtement obtenu.
We then speak of anodic paint to designate the surface layer, thus made conductive. To do this we must orient the metal particles that are incorporated into the formulation of the paint after polymerization, by mechanical action, without degrading the cosmetic appearance. Two methods are commonly used for this:
  • burnishing, which involves rubbing the painted parts after polymerization in the same direction, with the help of a metal sponge. This action makes it possible to achieve electrical continuity on the treated parts. On the other hand, it is a manual action, which is difficult to automate and therefore non-industrial, and in which the inaccessible room areas have a significant risk of not being treated.
  • compaction, which consists of sanding the painted parts after polymerization. This action makes it possible to achieve electrical continuity on the treated parts. But it must be done at very low pressure so as not to degrade the treated areas. On the other hand, in order to maintain correct operation at the sanding plant, it must be kept at a relatively high operating pressure and, in any case, too important for the treatment of the part; this leads, in the current state, systematic damage to the quality of the coating obtained.

Il est donc nécessaire de trouver un procédé qui permette le compactage de peintures anodiques par un sablage qui soit respectueux de la qualité du revêtement des pièces traitées.It is therefore necessary to find a method that allows the compaction of anodic paints by sanding which is respectful of the quality of the coating of the treated parts.

A cet effet, l'invention a pour objet un procédé de compactage par sablage de peintures anodiques comportant l'envoi d'au moins deux jets d'un matériau abrasif en direction d'une pièce recouverte par ladite peinture, lesdits jets étant orientés de façon convergente et se rejoignant en un point de focalisation, caractérisé en ce que ledit point de focalisation est positionné en amont de la pièce.For this purpose, the subject of the invention is a process for compacting sand-blasting anodic paints comprising sending at least two jets of an abrasive material towards a part covered by said paint, said jets being oriented from convergent manner and meeting at a point of focus, characterized in that said point of focus is positioned upstream of the piece.

En faisant focaliser les deux jets de sable avant qu'ils n'atteignent la pièce, le choc entre elles des particules de sable fait perdre une partie de leur énergie aux jets et les rend aptes à effectuer une opération de compactage d'une peinture anodique.By focusing the two sand jets before they reach the room, the collision between them of the sand particles causes some of their energy to be lost to the jets and makes them capable of performing an operation of compaction of anodic paint. .

Préférentiellement la disposition des jets de matériau abrasif présente une symétrie par rapport à la direction perpendiculaire à la surface à traiter.Preferably the arrangement of the jets of abrasive material has a symmetry with respect to the direction perpendicular to the surface to be treated.

Dans un mode particulier de réalisation les jets de matériau abrasif sont au nombre de deux et forment entre eux un angle de 90°.In a particular embodiment, the jets of abrasive material are two in number and form an angle of 90 ° between them.

De façon préférentielle la distance de recul du point de focalisation par rapport à la surface de la pièce à traiter est comprise entre 200 et 300 mm.Preferably, the distance of the focusing point from the surface of the workpiece is between 200 and 300 mm.

Avantageusement la pression de sablage est supérieure à 2 bars. On peut donc utiliser les installations de sablage existantes, en effectuant un simple recul des buses de projection du sable.Advantageously, the sanding pressure is greater than 2 bars. It is therefore possible to use the existing sandblasting facilities, by simply making a drop in the sand spray nozzles.

L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre, d'un mode de réalisation de l'invention donné à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés.The invention will be better understood, and other objects, details, features and advantages thereof will appear more clearly in the following detailed explanatory description of an embodiment of the invention given as a purely illustrative and non-limiting example, with reference to the accompanying schematic drawings.

Sur ces dessins :

  • la figure 1 est une vue schématique, de face, d'un dispositif de sablage d'une pièce, selon l'art antérieur;
  • la figure 2 est une vue schématique, de dessus, d'un dispositif de sablage d'une pièce, selon l'art antérieur ;
  • la figure 3 est une vue schématique, de face, d'un dispositif de sablage d'une pièce, selon un mode de réalisation de l'invention ;
  • la figure 4 est une vue schématique, de dessus, d'un dispositif de sablage d'une pièce, selon un mode de réalisation de l'invention.
On these drawings:
  • the figure 1 is a schematic front view of a sanding device of a part, according to the prior art;
  • the figure 2 is a schematic view, from above, of a device for sandblasting a workpiece, according to the prior art;
  • the figure 3 is a schematic front view of a blast device of a part, according to one embodiment of the invention;
  • the figure 4 is a schematic view, from above, of a device for sandblasting a workpiece, according to one embodiment of the invention.

En se référant aux figures 1 et 2, on voit, respectivement en vue de face et en vue de dessus, le sablage d'une pièce 1 tel qu'il est couramment pratiqué pour la finition de surface d'une pièce de turbomachine. Le sablage classique s'effectue avec deux buses 2, qui sont orientées à 90° l'une de l'autre et qui envoient, chacune, un faisceau de sable 3 perpendiculairement à la surface de la pièce 1, les deux jets se propageant dans un même plan. La distance "d" de la droite reliant les deux buses 2 à la pièce 1 est telle que les deux faisceaux 3 se rejoignent en un point de focalisation 4 qui situé sur la pièce 1, c'est-à-dire qu'ils atteignent tous deux le même point à sabler.Referring to Figures 1 and 2 , it is seen, respectively in front view and in top view, sanding a workpiece 1 as it is commonly practiced for the surface finish of a turbomachine part. The conventional sanding is carried out with two nozzles 2, which are oriented at 90 ° to each other and which each send a bundle of sand 3 perpendicular to the surface of the part 1, the two jets propagating in the same plan. The distance "d" from the straight line connecting the two nozzles 2 to the piece 1 is such that the two beams 3 meet at a focusing point 4 which is located on the piece 1, that is to say they reach both have the same point to sand.

Pour effectuer le sablage les deux buses sont déplacées simultanément le long de la pièce 1, sur sa hauteur et sur sa circonférence, comme indiqué par une flèche sur la figure 1, en conservant à tout instant la même géométrie pour la position relative des buses 2 et de la surface de la pièce 1. Compte tenu de l'angle solide caractérisant la divergence des faisceaux 3 la surface balayée à chaque instant par le sablage a la forme d'un cercle de diamètre "I".To sandblast the two nozzles are moved simultaneously along the piece 1, its height and its circumference, as indicated by an arrow on the figure 1 , keeping at all times the same geometry for the relative position of the nozzles 2 and the surface of the workpiece 1. Given the solid angle characterizing the divergence of the beams 3, the surface swept at each instant by sandblasting to the shape a circle of diameter "I".

En se référant maintenant aux figures 3 et 4 on voit, respectivement en vue de face et en vue de dessus, le compactage, selon l'invention, de la peinture qui recouvre la pièce à traiter. Les deux buses 2 sont positionnées comme précédemment avec des jets 3 orientés dans un même plan à 90° l'un de l'autre et avec le même angle solide de divergence. Le balayage le long de la pièce s'effectue, là encore, de la même façon que pour un sablage classique. En revanche la distance à laquelle les buses sont placées de la surface de la pièce est augmentée par rapport au cas précédent, de sorte que la droite qui les relie se situe maintenant à une distance supérieure à la distance de focalisation d. A cette distance est ajoutée une distance de recul des buses "r", ce qui fait que les jets de sable se rencontrent en un point de focalisation 4 qui est situé, cette fois, en avant de la surface de la pièce. Le choc des deux jets l'un contre l'autre entraîne un phénomène de diffraction de ces jets, qui se combinent en un jet unique, à plus grand angle solide. Ce jet diffracté est orienté perpendiculairement à la paroi à traiter du fait de la symétrie donnée à la disposition des jets par rapport à la direction perpendiculaire à la surface de la pièce 1. En conséquence la taille de la surface balayée à chaque instant par le compactage est plus importante et forme un cercle de diamètre "L" supérieur à "I".Referring now to Figures 3 and 4 it is seen, respectively in front view and in top view, the compaction, according to the invention, of the paint which covers the workpiece. The two nozzles 2 are positioned as before with jets 3 oriented in the same plane at 90 ° to each other and with the same solid angle of divergence. The sweeping along the piece is done, again, in the same way as for a conventional sandblasting. However, the distance at which the nozzles are placed from the surface of the part is increased compared to the previous case, so that the straight line connecting them is now at a distance greater than the focusing distance d. At this distance is added a recoil distance of the nozzles "r", so that the sand jets meet at a focusing point 4 which is located, this time, in front of the surface of the piece. The shock of the two jets against each other causes a diffraction phenomenon of these jets, which combine in a single jet, larger solid angle. This diffracted jet is oriented perpendicularly to the wall to be treated because of the symmetry given to the arrangement of the jets relative to the direction perpendicular to the surface of the part 1. As a result, the size of the surface swept at each instant by the compacting is larger and forms a circle of diameter "L" greater than "I".

On va maintenant décrire le principe de fonctionnement d'un compactage de peinture anodique selon l'invention.We will now describe the operating principle of a compaction of anodic paint according to the invention.

En sablage classique à deux buses à 90°, le réglage de la distance buses / pièce est réalisé de façon que le point focal 4 du jet se situe sur la surface de la pièce à traiter 1, c'est-à-dire là où l'énergie cinétique du sable est la plus forte. Les pressions de sablage mises en oeuvre sont couramment de l'ordre de 3 bars. La longueur de focalisation d est invariable, quelles que soient les pressions de sablage mises en oeuvre.In conventional sanding with two nozzles at 90 °, the adjustment of the nozzle / workpiece distance is made so that the focal point 4 of the jet is on the surface of the workpiece 1, that is to say where the kinetic energy of sand is the strongest. The sanding pressures used are commonly of the order of 3 bars. The focusing length d is invariable, irrespective of the sanding pressures used.

Pour effectuer le compactage recherché, on pourrait imaginer de diminuer la pression de sablage jusqu'à environ 1.5 bar, ce qui correspond à la valeur minimale de pression acceptable par les installations. Mais même cette pression réduite reste trop importante pour le compactage car elle endommagerait les surfaces traitées par un phénomène d'écaillage de la peinture. Il a donc fallu trouver une solution pour diminuer la puissance du jet de sablage. L'invention consiste à augmenter la distance buses / pièce sans faire évoluer l'angle d'incidence de 90° des faisceaux de sable entre eux. Le point de focalisation 4 de ces faisceaux ne se situe alors plus au niveau de la pièce elle-même, mais au niveau d'un point de convergence où les jets de sables s'entrecroisent. La collision des particules génère alors une diffraction du faisceau, qui a pour effet de diminuer la vitesse des particules de sable sur la pièce 1 réduisant ainsi son énergie cinétique et faisant perdre de sa puissance au faisceau diffracté 5. La conséquence en est une conservation de l'intégrité cosmétique de la peinture tout en la rendant électriquement conductrice.To achieve the desired compaction, one could imagine reducing the sanding pressure to about 1.5 bar, which corresponds to the minimum value of pressure acceptable by the installations. But even this reduced pressure remains too important for compaction because it would damage the treated surfaces by a peeling phenomenon of the paint. It was therefore necessary to find a solution to reduce the power of the sanding jet. The invention consists in increasing the nozzle / piece distance without changing the angle of incidence of 90 ° of the sand bundles between them. The focal point 4 of these beams is then no longer at the level of the room itself, but at a point of convergence where the sand jets intertwine. The collision of the particles then generates a beam diffraction, which has the effect of reducing the speed of the sand particles on the part 1 thus reducing its kinetic energy and making the diffracted beam 5 lose its power. The consequence is a conservation of the cosmetic integrity of the paint while making it electrically conductive.

L'éloignement des buses 2 par rapport à la pièce 1 permet de maintenir une pression du jet de sable suffisante pour le bon fonctionnement de l'installation. Par ailleurs, cette solution présente l'avantage, du fait de la divergence plus grande du faisceau diffracté 5, de couvrir une surface de la pièce plus importante et donc de pouvoir augmenter la vitesse de balayage et, ainsi, de réduire le cycle de traitement.The distance of the nozzles 2 relative to the part 1 makes it possible to maintain a pressure of the sand jet sufficient for the proper functioning of the installation. Moreover, this solution has the advantage, because of the greater divergence of the diffracted beam 5, to cover a larger surface area of the workpiece and thus to be able to increase the scanning speed and thus reduce the treatment cycle. .

Une optimisation de la distance point focal / pièce a été recherchée, afin que la pression de sablage soit suffisante pour assurer un bon compactage mais pas trop forte pour ne pas endommager les surfaces traitées. L'invention préconise à cet effet une distance de recul "r" de la pièce par rapport au point focal, qui soit de l'ordre de 250mm, et en tout état de cause comprise entre 200 et 300 mm.An optimization of the distance focal point / part was sought, so that the sanding pressure is sufficient to ensure good compaction but not too strong not to damage the treated surfaces. The invention recommends for this purpose a distance of recoil "r" of the piece relative to the focal point, which is of the order of 250mm, and in any case between 200 and 300 mm.

Cette solution permet de respecter l'ensemble des exigences de compactage de la peinture avec une parfaite répétitivité du procédé et elle procure un gain de temps appréciable, le balayage de la pièce pouvant être 2 à 3 fois plus rapide qu'un brunissage manuel, en fonction de la forme de la pièce à traiter.This solution makes it possible to respect all the compaction requirements of the paint with a perfect repetitiveness of the process and it saves an appreciable time, the sweeping of the part being able to be 2 to 3 times faster than a manual browning, in depending on the shape of the workpiece.

Claims (5)

  1. A method of compacting anodic paints using sand-blasting involving directing at least two jets (3) of an abrasive material toward a component (1) covered with said paint, said jets being oriented convergently and meeting at a focal point (4),
    characterized in that said focal point is positioned upstream of the component (1).
  2. The compaction method as claimed in claim 1, in which the arrangement of the jets (3) of abrasive material exhibits symmetry with respect to the direction perpendicular to the surface that is to be treated.
  3. The compaction method as claimed in claim 2, in which there are two of the jets (3) of abrasive material, making an angle of 90° between them.
  4. The compaction method as claimed in one of claims 1 to 3, in which the distance of the focal point (4) back from the surface of the component that is to be treated (1) is comprised between 200 and 300 mm.
  5. The compaction method as claimed in claim 4, in which the sand-blasting pressure is higher than 2 bar.
EP13729999.6A 2012-05-29 2013-05-29 Method for compacting anodic paints, including the collision of sandblasting jets Active EP2855083B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1254921A FR2991216B1 (en) 2012-05-29 2012-05-29 METHOD FOR COMPACTING ANODIC PAINTS WITH COLLISION OF SANDBLASTING JETS
PCT/FR2013/051192 WO2013178941A1 (en) 2012-05-29 2013-05-29 Method for compacting anodic paints, including the collision of sandblasting jets

Publications (2)

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EP2855083A1 EP2855083A1 (en) 2015-04-08
EP2855083B1 true EP2855083B1 (en) 2016-06-15

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EP13729999.6A Active EP2855083B1 (en) 2012-05-29 2013-05-29 Method for compacting anodic paints, including the collision of sandblasting jets

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US (1) US9427845B2 (en)
EP (1) EP2855083B1 (en)
JP (1) JP6175132B2 (en)
CN (1) CN104349869B (en)
BR (1) BR112014029428B1 (en)
CA (1) CA2874833C (en)
FR (1) FR2991216B1 (en)
IN (1) IN2014DN10682A (en)
RU (1) RU2627072C2 (en)
WO (1) WO2013178941A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3028776B1 (en) * 2014-11-25 2018-12-07 Safran Aircraft Engines SYSTEM FOR PAINTING ON A ROTATING PAINT BENCH AN EXTREMITY EVASTED OF HOLLOW TREE
FR3040013B1 (en) * 2015-08-13 2018-02-23 Safran Aircraft Engines METHOD FOR COMPACTING AN ANTI-CORROSION PAINT OF A TURBOMACHINE PIECE
FR3088564B1 (en) 2018-11-16 2020-12-25 Safran Aircraft Engines PROCESS FOR COMPACTING AN ANTI-CORROSION PAINT OF A TURBOMACHINE PART
FR3102694B1 (en) * 2019-10-30 2022-06-03 Safran Aircraft Engines PROCESS FOR COMPACTING AN ANTI-CORROSION COATING
FR3102687B1 (en) 2019-10-31 2021-10-15 Safran Aircraft Engines PROCESS FOR COMPACTING AN ANTI-CORROSION PAINT OF A TURBOMACHINE PART
FR3122342A1 (en) 2021-04-30 2022-11-04 Safran Aircraft Engines PROCESS FOR COMPACTING AN ANTI-CORROSION PAINT ON A TURBOMACHINE PART

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754976A (en) 1971-12-06 1973-08-28 Nasa Peen plating
US5098797A (en) 1990-04-30 1992-03-24 General Electric Company Steel articles having protective duplex coatings and method of production
US6604986B1 (en) 1997-11-20 2003-08-12 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Process and device for working a workpiece
WO2009112945A2 (en) 2008-03-12 2009-09-17 Enbio Limited Nozzle configurations for abrasive blasting
EP2226409A2 (en) 2009-03-06 2010-09-08 General Electric Company Erosion and corrosion resistant turbine compressor airfoil and method of making the same
US20110236192A1 (en) 2008-09-05 2011-09-29 Snecma Compressor housing resistant to titanium fire, high-pressure compressor including such a housing and aircraft engine fitted with such a compressor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1654509A (en) * 1924-08-30 1927-12-27 Bound Brook Oil Less Bearing Antifriction bearing and method of forming the same
US3020182A (en) * 1958-09-26 1962-02-06 Gen Electric Ceramic-to-metal seal and method of making the same
SU814698A1 (en) * 1978-06-20 1981-03-23 Bulkin Valentin A Apparatus for hydraulic abrasive working of parts
DE3469145D1 (en) * 1984-08-14 1988-03-10 Johan Szucs Stone and metal cleaning system
DE3539464A1 (en) * 1985-11-07 1987-05-14 Hollingsworth Gmbh METHOD FOR TREATING THE EDGES OF A SAW TOOTH WIRE
GB8627308D0 (en) * 1986-11-14 1986-12-17 Alcan Int Ltd Composite metal deposit
JPH0762559A (en) * 1993-08-27 1995-03-07 Inter Metallics Kk Formation of powder film
RU2104831C1 (en) * 1993-11-05 1998-02-20 Борис Михайлович Солодов Method of cutting by jet of fluid with abrasive
US5592841A (en) * 1994-07-14 1997-01-14 Champaigne; Jack M. Shot peening method
US5526664A (en) * 1994-09-07 1996-06-18 Progressive Technologies, Inc. Method of forming a textured pattern on a metal plate which pattern is transformed to a plastic part, and a press plate and plastic part produced thereby
US6123999A (en) * 1997-03-21 2000-09-26 E. I. Du Pont De Nemours And Company Wear resistant non-stick resin coated substrates
CN1270091A (en) * 2000-01-03 2000-10-18 刘毅 Jet-and-suck blast nozzle with more air fountains
KR101494909B1 (en) * 2006-09-11 2015-02-23 엔바이오 리미티드 Method of doping surfaces

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754976A (en) 1971-12-06 1973-08-28 Nasa Peen plating
US5098797A (en) 1990-04-30 1992-03-24 General Electric Company Steel articles having protective duplex coatings and method of production
US5098797B1 (en) 1990-04-30 1997-07-01 Gen Electric Steel articles having protective duplex coatings and method of production
US6604986B1 (en) 1997-11-20 2003-08-12 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Process and device for working a workpiece
WO2009112945A2 (en) 2008-03-12 2009-09-17 Enbio Limited Nozzle configurations for abrasive blasting
US20110104991A1 (en) 2008-03-12 2011-05-05 Enbio Limited Nozzle configurations for abrasive blasting
US20110236192A1 (en) 2008-09-05 2011-09-29 Snecma Compressor housing resistant to titanium fire, high-pressure compressor including such a housing and aircraft engine fitted with such a compressor
EP2226409A2 (en) 2009-03-06 2010-09-08 General Electric Company Erosion and corrosion resistant turbine compressor airfoil and method of making the same

Also Published As

Publication number Publication date
CN104349869B (en) 2017-02-15
FR2991216A1 (en) 2013-12-06
IN2014DN10682A (en) 2015-08-28
RU2627072C2 (en) 2017-08-03
CN104349869A (en) 2015-02-11
JP2015517925A (en) 2015-06-25
JP6175132B2 (en) 2017-08-02
BR112014029428B1 (en) 2020-07-07
US9427845B2 (en) 2016-08-30
WO2013178941A1 (en) 2013-12-05
US20150158146A1 (en) 2015-06-11
EP2855083A1 (en) 2015-04-08
CA2874833C (en) 2020-10-27
RU2014150516A (en) 2016-07-20
FR2991216B1 (en) 2014-07-04
BR112014029428A2 (en) 2018-05-15
CA2874833A1 (en) 2013-12-05

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